CN205713061U - Steel pipe type all steel frame bridging - Google Patents

Abstract

This utility model relates to a kind of scaffold bridging, is specially a kind of steel pipe type all steel frame bridging, and including two pieces of fixed plates and four oblique fulcrum bars, hinged in the middle part of two pieces of fixed plates, fixed plate two ends are respectively fixed with an oblique fulcrum bar, and four oblique fulcrum bars are generally aligned in the same plane.This utility model is in order to solve the problem installing inconvenience that existing bridging brings owing to brace is positioned at Different Plane, it is intended that provide a kind of bridging being easily installed.

Description

Steel pipe type all steel frame scissors support

technical field

The utility model relates to a scaffold scissors brace, in particular to a steel pipe type all-steel frame scissors brace.

Background technique

Scissors support: The scaffolding is vertically or horizontally arranged in pairs with crossed diagonal bars, and the diagonal bars are fixed to each other by rotating fasteners. The scissor support is fixed on the horizontal bar or vertical bar that intersects it with a rotating fastener.

The problem of the prior art is: since the oblique rods are hollow and have a certain diameter, the two oblique rods are located on different planes after crossing. It is very inconvenient to install on the crossbar of the scaffold. In addition, our company first designed a protective net using expanded metal mesh, which can replace the existing flexible protective net. The expanded mesh protective net has a longer service life. Now it is necessary to fix the expanded metal on the On the outer surface of the scaffold, because the aforementioned scissor brace is fixed between the scaffold and the steel mesh, the thicker the scissor brace makes the distance between the protective net and the scaffold longer, on the one hand it increases the difficulty of installing the steel mesh, on the other hand because the steel mesh The quality requirements of the connecting parts have increased a lot, which has increased the cost of manpower and production materials.

Utility model content

The utility model aims to provide a thinner scissors stay in order to solve various problems of the existing scissors stay because the inclined bars are located on different planes.

The basic scheme provided by the utility model is: a steel pipe-type all-steel frame scissors support, including two fixed plates and four oblique struts, the middle parts of the two fixed plates are hinged, one oblique strut is fixed at each end of the fixed plate, and four oblique struts are fixed. The struts are on the same plane.

Compared with the prior art, the advantages of this solution are: 1. This solution consists of two fixed plates hinged together. Under the premise of meeting the design strength requirements, the thickness of the fixed plates stacked together is smaller than the thickness of the two steel pipes. At the same time, in this scheme, the oblique struts are located in the same plane. Therefore the thickness of this scheme will be less than the thickness of scissors stay in the prior art.

2. When the structure of this scheme is adopted, the staggered distance of the four oblique struts is small, and the oblique struts are located in the same horizontal plane, so the stressed structure of the four oblique struts is more stable.

3. When this solution is adopted, the installation is simpler. In the prior art, since the two inclined bars forming the scissor brace are staggered and located on different planes, after one of the inclined bars is fixed on the vertical pole of the scaffold, the other inclined The pole then needs to be fixed on the protruding end of the transverse horizontal pole of the scaffold. This complicates the process of installing existing scissor stays. When adopting the structure of this scheme, since the four oblique struts are almost on the same plane, all the oblique struts can be fixed on the horizontal bar of the scaffold or the vertical pole of the scaffold, which is much simpler than the installation scheme in the background.

4. Adopting this scheme reduces the distance between the scissors brace and the scaffold. When the steel mesh structure is used outside the scaffold, the steel mesh needs to be fixed on the scaffold with special connectors. Since the steel mesh is located outside the scissors brace, the scissors brace The distance between the expanded metal mesh and the scaffold is increased, so when the thickness of the scissors brace is larger, the required length of the connector is longer, and the longer the connector, the higher the design strength requirements, and the reduction of the scissors brace and The distance between the scaffolds can shorten the distance between the expanded metal mesh and the scissor brace relative to the scaffold, thereby shortening the length of the connectors, reducing the design requirements for the connectors, and reducing production costs while meeting safety requirements. The scaffolding distance is shorter and the installation is easier.

Scheme 2: For the optimization of the basic scheme, the free end of the oblique strut is fixed on the vertical pole of the scaffold. Beneficial effects: the free end in this scheme refers to the end of the oblique strut away from the fixed plate. The stability of the oblique strut fixed on the vertical rod is better than that fixed on the horizontal rod. The vertical rod and the horizontal rod are called here. The pole refers to the vertical bar of the scaffold.

Scheme 3: The optimization of Scheme 2 also includes extension rods and movable fasteners. The extension rods are fixedly connected to the free ends of the oblique poles through movable fasteners, and the extension rods are fixedly connected to the vertical rods through movable fasteners. Beneficial effects: Fixing with movable fasteners is a stable and low-cost connection method. In order to facilitate the production, the length of the oblique pole will not be too long. In normal use, it is usually necessary to connect an extension pipe to extend the length of the scissors.

Scheme 4: For the optimization of any one of schemes from basic scheme to scheme 3, the fixing plate is provided with a groove compatible with the outer wall of the oblique strut, and the oblique strut is located in the groove. Beneficial effect: a choice of the connection structure between the fixed plate and the oblique strut, the tubular structure of the oblique strut is relatively complete, and the structure of the oblique strut is relatively stable.

Scheme 5: For the optimization of any one of schemes from basic scheme to scheme 3, the oblique strut is provided with a fixing groove for the insertion of the fixing plate, and the fixing plate is located in the fixing groove. Beneficial effects: Another choice for the connection structure between the fixed plate and the oblique strut. This connection structure has a large contact area, and the fixing groove has a certain restrictive effect on the oblique strut. No matter what kind of fixing method is used, the connection can be made more stable .

Scheme 6: For the optimization of Scheme 5, both the oblique strut and the fixed plate have through holes, and the fixed plate and the oblique strut are connected by bolts or pins. Beneficial effect: the cost of bolt and pin shaft connection is low, the installation is fast, and at the same time, it is easy to disassemble.

Scheme 7: For the optimization of Scheme 4, bolts or pins are used to fix the connection between the two fixed plates. Beneficial effect: the bolt and the pin shaft are connected at low cost, and the mounting block is detachable, so that the angle between the fixing plates can be adjusted conveniently.

Scheme 8: For the optimization of Scheme 6, bolts or pins are used to fix the connection between the two fixed plates. Beneficial effects: bolts and pin shafts are used to connect the fixed plate and the oblique support rods to facilitate on-site assembly.

Scheme 9: For the optimization of scheme 4, the fixed plate is welded with oblique struts. Beneficial effect: the scheme does not destroy the structure of the oblique strut, and the structural strength of the oblique strut after welding is high.

Scheme 10: For the optimization of Scheme 5, the fixed plate is welded with oblique struts. Beneficial effect: the weldable area of the connection position of this scheme increases, and the welding effect is better.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a steel pipe-type all-steel frame scissors brace of the present invention.

FIG. 2 is a schematic diagram of the three-dimensional structure of FIG. 1 .

Fig. 3 is a connection diagram of the fixed plate and the inclined strut in Fig. 2 .

detailed description

The utility model is described in further detail below by means of specific embodiments:

The reference signs in the drawings of the description include: fixed plate 1, inclined strut 2, bolt 3, steel pipe.

Embodiment 1 shown in Figure 1, Figure 2 and Figure 3 includes two fixed plates 1 and four oblique struts 2, the middle parts of the two fixed plates 1 are hinged, and one oblique strut is fixed at both ends of the fixed plate 1 2. The four oblique struts 2 are located on the same plane. It also includes an extension rod and a movable fastener, the extension rod is fixedly connected to the free ends of the oblique poles 2 through the movable fastener, and the extension rod is fixedly connected to the vertical rod through the movable fastener. The fixing plate 1 is provided with a groove adapted to the outer wall of the oblique strut 2, and the oblique strut 2 is located in the groove. The two fixed plates are fixedly connected by bolts 3 or pin shafts. The fixed plate 1 is welded with an oblique strut 2 .

In this embodiment, two fixing plates 1 are hinged together. Under the premise of meeting the design strength requirements, the thickness of the fixing plates 1 stacked together is smaller than the thickness of the two steel pipes. At the same time, in this embodiment, the oblique struts 2 are located in the same plane. Therefore, the thickness of this embodiment is smaller than that of the scissor stay in the prior art. The staggered distance of the four oblique struts 2 is small, and the oblique struts 2 are located in the same horizontal plane, so the stressed structure of the four oblique struts 2 is more stable. When this embodiment is adopted, the installation is simpler. In the prior art, since the two oblique rods forming the scissor brace are staggered and located on different planes, after one of the oblique rods is fixed on the vertical rod of the scaffold, the other oblique rod Then it needs to be fixed on the protruding end of the horizontal horizontal bar of the scaffold. This complicates the process of installing existing scissor stays. And when adopting the structure of this embodiment, since the four oblique struts 2 are almost located on the same plane, they can all be fixed on the scaffold on the same plane, which is convenient for installation. Adopting this embodiment reduces the distance between the scissors brace and the scaffold. When the steel mesh structure is adopted outside the scaffold, the steel mesh needs to be fixed on the scaffold with special connectors. Since the steel mesh is located outside the scissors brace, it is When the thickness of the brace is large, the required length of the connector is longer, and the longer the connector, the higher the design strength requirements. Reducing the distance between the scissors brace and the scaffold can make the steel mesh and the scissors brace relatively The distance of the scaffolding is shortened, thereby shortening the length of the connecting parts, which can reduce the design requirements for the connecting parts, and reduce the production cost while meeting the safety requirements.

Embodiment 2 includes two fixed plates 1 and four slanted struts 2 , the middle parts of the two fixed plates 1 are hinged, and one slanted strut 2 is fixed to each end of the fixed plate 1 , and the four slanted struts 2 are located on the same plane. It also includes an extension rod and a movable fastener, the extension rod is fixedly connected to the free ends of the oblique poles 2 through the movable fastener, and the extension rod is fixedly connected to the vertical rod through the movable fastener. The inclined strut 2 is provided with a fixing groove for inserting the fixing plate 1, and the fixing plate 1 is located in the fixing groove. Both the oblique struts 2 and the fixed plate 1 have through holes, and the fixed plate 1 and the oblique struts 2 are connected by bolts 3 or pin shafts. The two fixed plates are fixedly connected by bolts 3 or pin shafts.

Claims (10)

1. steel pipe type all steel frame bridging, it is characterised in that include two pieces of fixed plates and four oblique fulcrum bars, hinged in the middle part of two pieces of described fixed plates, described fixed plate two ends are respectively fixed with an oblique fulcrum bar, and four described oblique fulcrum bars are generally aligned in the same plane.

Steel pipe type all steel frame bridging the most according to claim 1, it is characterised in that: the free end of described oblique fulcrum bar is fixed in the vertical rod of scaffold.

Steel pipe type all steel frame bridging the most according to claim 2, it is characterized in that: also include extension bar and moving fastening, described extension bar is fixedly connected on the free end of oblique fulcrum bar by moving fastening, and described extension bar is fixedly connected in vertical rod by moving fastening.

4. according to the steel pipe type all steel frame bridging described in any one in claims 1 to 3, it is characterised in that: described fixed plate has the groove adapted with oblique fulcrum bar outer wall, and oblique fulcrum bar is positioned in described groove.

5. according to the steel pipe type all steel frame bridging described in any one in claims 1 to 3, it is characterised in that: described oblique fulcrum bar offers the fixing groove inserted for fixed plate, and described fixed plate is positioned in described fixing groove.

Steel pipe type all steel frame bridging the most according to claim 5, it is characterised in that: described oblique fulcrum bar and fixed plate all have through hole, and between fixed plate with oblique fulcrum bar, with bolts or bearing pin is connected.

Steel pipe type all steel frame bridging the most according to claim 4, it is characterised in that: use bolt or the fixing connection of bearing pin between two pieces of described fixed plates.

Steel pipe type all steel frame bridging the most according to claim 6, it is characterised in that: use bolt or the fixing connection of bearing pin between two pieces of described fixed plates.

Steel pipe type all steel frame bridging the most according to claim 4, it is characterised in that: described fixed plate welding oblique fulcrum bar.

Steel pipe type all steel frame bridging the most according to claim 5, it is characterised in that: described fixed plate welding oblique fulcrum bar.